| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | Aug | 50 |
| 2024 | Aug | 50 |
| 2023 | May | 50 |
| 2022 | Jul | 50 |
| 2021 | Nov | 50 |
| 2020 | Oct | 50 |
| 2019 | Nov | 50 |
| 2018 | Nov | 50 |
| 2018 | Feb | 50 |
| 2017 | Aug | 50 |
| 2016 | Aug | 50 |
| 2015 | Aug | 50 |
| 2014 | Nov | 50 |
| 2013 | Nov | 50 |
| 2013 | Feb | 55 |
| 2012 | Feb | 55 |
| 2011 | Feb | 46 |
| 2010 | Mar | 37 |
| 2009 | Mar | 37 |
| 2008 | Mar | 28 |
| 2007 | Jun | 35 |
| 2002 | Sep | - |
| 1999 | Jun | 10 |
| 1998 | Jul | 18 |
| 1997 | Jun | 18 |